2207156 has 18 divisors (see below), whose sum is σ = 4493538. Its totient is φ = 945840.

The previous prime is 2207143. The next prime is 2207159. The reversal of 2207156 is 6517022.

2207156 = T₄₁ + T₄₂ + ... + T₂₃₆.

2207156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2202256 + 4900 = 1484^2 + 70^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2207159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5435 + ... + 5826.

It is an arithmetic number, because the mean of its divisors is an integer number (249641).

2^2207156 is an apocalyptic number.

It is an amenable number.

2207156 is an abundant number, since it is smaller than the sum of its proper divisors (2286382).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2207156 is a wasteful number, since it uses less digits than its factorization.

2207156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11279 (or 11270 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 2207156 is about 1485.6500260829. The cubic root of 2207156 is about 130.2000077080.

The spelling of 2207156 in words is "two million, two hundred seven thousand, one hundred fifty-six".